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Finding the Fourth Proportional to 110,448.30, 165,672.45 and 76,622.70

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Solution

The fourth proportional to 110,448.30, 165,672.45 and 76,622.70 is: 114,934.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,448.30 : 165,672.45 = 76,622.70 : x
  2. Step 2: Convert to fraction form
    110,448.30/165,672.45 = 76,622.70/x
  3. Step 3: Cross multiply
    110,448.30x = 165,672.45 × 76,622.70
  4. Step 4: Simplify right side
    110,448.30x = 12,694,270,434.62
  5. Step 5: Solve for x
    x = 12,694,270,434.62/110,448.30
  6. Step 6: Final answer
    x = 114,934.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.